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She's at it again. Vani Hari, better known to many as the Charlotte, N.C.-based Food Babe, is taking dead aim at two behemoths in the beer industry, Chicago-based MillerCoors and St. Louis-based Anheuser-Busch InBev. According to Hari, the two companies collectively sell more than $75 billion worth of beer a year.

Yea, that's a lot of hops.

After having gotten the attention of Northfield, IL.-based Kraft Foods and the Subway restaurant chain in two of her previous crusades, the Food Babe is now demanding that Anheuser-Busch and MillerCoors post on their respective websites the full list of ingredients that go into their brews.

Curiously, because the Alcohol and Tobacco Tax and Trade Bureau in the United States Department of the Treasury regulates the beer industry (go figure!) rather than the U.S. Food and Drug Administration, breweries aren't required to publicly reveal their full list of ingredients, which of course has raised the suspicions of a curious Food Babe.

Hari maintains that the federal government has actually approved a long list of additives to beer, though it's unclear how many of them brewers actually use. The additives include high fructose corn syrup, artificial flavors and colors and, the Food Babe claims, some ingredients found in airplane deicing fluid. Yikes!

Of course Hari has made known her request for full ingredient disclosure to top executives at both Anheuser-Busch and MillerCoors. But so far she says she's only gotten the runaround.

So she's launching another massive petition-signing effort to try and force Anheuser-Busch and MillerCoors to do her bidding.

Her efforts have yielded results elsewhere. Time — and enough petition signatures — will tell if she can make the biggest of the big in the beer business bow to her demands as well. This morning Hari said that in just three hours she already had gotten 10,000 to sign the petition in support of her crusade.

The Food Babe added in a statement: "Transparency is all we're asking for — just tell us what we're drinking."

For more from Lewis Lazare andthe Chicago Business Journal, click here.